Language, Truth and Logic is a 1936 book about meaning by the philosopher Alfred Jules Ayer, in which the author defines, explains, and argues for the...

branch of logic. It is also called propositional logic, statement logic, sentential calculus, sentential logic, or sometimes zeroth-order logic. It deals...

Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth or falsity...

In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth, which in classical...

Truth or verity is the property of being in accord with fact or reality. In everyday language, truth is typically ascribed to things that aim to represent...

Philosophy of logic is the area of philosophy that studies the scope and nature of logic. It investigates the philosophical problems raised by logic, such as...

Fuzzy logic is a form of many-valued logic in which the truth value of variables may be any real number between 0 and 1. It is employed to handle the...

Syntax (logic) Truth Truth value Validity Affine logic Alethic logic Aristotelian logic Boolean logic Buddhist logic Bunched logic Categorical logic Classical...

interpretation of the language. In propositional logic, they are tautologies. A statement can be called valid, i.e. logical truth, if it is true in all...

concept in the philosophy of language, semantics, logic, and related fields, often characterized as the primary bearer of truth or falsity. Propositions are...

In logic, the semantics of logic or formal semantics is the study of the semantics, or interpretations, of formal languages and (idealizations of) natural...

In logic and semantics, the term statement is variously understood to mean either: a meaningful declarative sentence that is true or false, or a proposition...

conjunction, implication, and equivalence. In standard systems of classical logic, these connectives are interpreted as truth functions, though they receive...

particularly in his books Language, Truth, and Logic (1936) and The Problem of Knowledge (1956). Ayer was educated at Eton College and the University of Oxford...

logic, a truth function is a function that accepts truth values as input and produces a unique truth value as output. In other words: the input and output...

regardless of the truth or falsity of their propositional variables. Some early books on logic (such as Symbolic Logic by C. I. Lewis and Langford, 1932)...

theory of truth is a theory of truth in the philosophy of language which holds that truth is a property of sentences. The semantic conception of truth, which...

philosophy and logical positivism in the 20th century, the theory was stated vividly by A. J. Ayer in his 1936 book Language, Truth and Logic, but its development...

First-order logic—also known as predicate logic, quantificational logic, and first-order predicate calculus—is a collection of formal systems used in mathematics...

formal language. Many formal languages used in mathematics, logic, and theoretical computer science are defined in solely syntactic terms, and as such...

Language. Carnap, R., (1956). Meaning and Necessity: a Study in Semantics and Modal Logic. University of Chicago Press. Collins, John. (2001). Truth Conditions...

for the meaning of moral language in this kind of unasserted context. This problem assumes that logic only applies to real truth values. Terence Cuneo argues...

an ordinary, truth-functional logic ever could. Throughout the 20th century, English philosophy focused closely on analysis of language. This style of...

there are three truth values indicating true, false, and some third value. This is contrasted with the more commonly known bivalent logics (such as classical...

experiences that we do? In his book, Language, Truth and Logic, Ayer suggested a protocol to distinguish between a conscious man and an unconscious machine: "The...

double negation elimination, and the bivalence of truth. Extended logics are logical systems that are based on classical logic and its rules of inference but...

epistemology Émile Boutroux Consensus theory of truth Ayer, Alfred Jules. Language, Truth and Logic, Dover Publications, Inc.: New York. 1952. p. 73...

is a logical truth. Formal logic uses formal languages to express and analyze arguments. They normally have a very limited vocabulary and exact syntactic...

logic, and philosophy of language are concerned about the nature of signs, what they are and how they signify. The nature of signs and symbols and significations...

models of logical consequence and logical truth. Philosophical logic is understood to encompass and focus on non-classical logics, although the term has other...